Ore-grinding apparatus



(No Model.)

T. LUOE.

Ore Grinding Apparatus. No; 235,158. Patented Dec. 7, 1880u Fag UNrrEn STATES PATENT @rrrcno THEODORE LUOE, OF DETROIT, MICHIGAN.

ORE-GRINDING APPARATUS.

SPECIFICATION formingpart of Letters Patent No. 235,158, dated December '7, 1880.

Application filed March 27, 1880. (No model.)

To all whom it may concern ment with the grooved double eccentric M;

Be it known that I, THEODORE LUCE, of and to this lever are rigidly secured the push- Detroit, Wayne county, Michigan, have invented an Improvement in oreOrushers, of which the following is a specification.

The nature of this invention relates to new and useful improvements in the construction and operation of that class of devices employed for crushing ores.

The invention consists in the peculiar construction and Various combinations of the parts, as more fully hereinafter set forth.

In the accompanying drawing, which shows my device in perspective, and forms a part of this specification, A A represent two troughs, designed to contain water, and these are placed parallel to each other to allow the lower edges of the vertically-revolvin g flanged crushing-rolls B to project into the water.

These flanged crushing-rolls B are rather two wheels, each rigidly secured to its axle (J 0, each axle being journaled in suitable bearings D, and upon the same line. These wheels or vertically-rotating flanged crushing-rolls are channeled, as shown at d, to receive the crushing-treads b of the large wheel E, which is so constructed that its interior may be loaded to any desired weightthat is to say, it may be constructed of metal and hollow, or as shown in the drawing, or it may be constructed with a hub and spokes, so that the loading may be secured around the hub. The crushing-treads b are secured to this wheel, one on either side, and between the crushing-treads and the wheel are channels 0, within which travel one flange of the guide-wheels F, and which embrace the treads b, said wheels F being journaled upon suitable shafts or arms G, properly secured to or near the four corners of the frame H, which is shown partially in section.

The larger wheel E is circnmferentially grooved to carry a chain, rope, or belt, r, which also engages with the grooved pulley I upon the shaft J, to which motion is communicated by and from any desired motor.

K are spouts, designed to carry the broken ore and deliver it in the channels a of the vertically-rotating flanged crushing-rolls B.

A lever, L, is pivoted as at e, and its opposite end is held, by the elastic strap 0, in engageers N, so arranged that at each half-revolution of the eccentric they will force the ore delivered from the spouts between the crushing-faces b and the channels a. where, by the rotation of the wheel E, it is crushed and delivered in the water troughs below.

The guide-rollers F, if properly secured, will at all times hold the Wheel E in an upright position, and allow its whole weight to rest in the channels a for crushing purposes, and at the same time will allow the wheel E, with its crushing-treads b, to rise and fall somewhat with the varying amount of material fed into the hoppers and under the treads, which would not occur if the wheel and its treads were secured on a rigid shaft.

It will also be observed that the flanged crushing-rolls B are hung on independent shafts, instead of being hung on the same shaft, whereby if one of the shafts or crushingrolls becomes broken or inoperative, the process of crushing can be continued with the other crushing-roll, and any increase or retardation of the feed of the material to one roll, thereby increasing or decreasing the velocity of its revolutions in the process of crashing, will not affect the operation of the other crushing-roll, which would be the case were other crushing-rolls on the same shaft and revolving with the same velocity; or, in other words, when the crushing-rolls are on separate or independent shafts, any irregularity in the feed and rotation of one will not affect the other, which would be the case if the rolls were on the same shaft.

What I claim as my invention is-- l. A vertically-rotating wheel, E, provided upon each side with crushing-treads b, held in vertical position by the guide-wheels F, in combination with vertically-rotating flanged crushing-rolls B, each of such rolls being secured to an independent shaft, substantially as and for the purposes set forth.

2. The combination, with the flanged crushing-rolls B and the circumferentially-grooved wheel E, having the crushing-treads b, of the spouts K, pivoted lever L, carrying the pushers N, elastic strap 0, crank-shaft J, carrying the grooved pulley l, and eccentric M, and

rope r, substantially as described, and for the purpose set forth.

3. The vertically-rotating eirelunferentiallygrooved wheel E, held in vertical position by 5 the guide-wheels F, and provided with the crushing-treads b, in combination with the flanged crushing-rolls B, having independent shafts, spouts K, pivoted lever L, carrying the pushers N, elastic straps 0, crank-shaft J, carrying the grooved pulley I, eccentric M, and i0 rope r, substantially as described, and for the purpose set forth.

THEODORE LUGE. Witnesses:

H. S. SPRAGUE, CHARLES J. HUNT. 

